michelle obama made an impassioned speech backing her husband for a second term as u.s. president. he's up against mitt romney in november. there at the democratic convention in north carolina. >> she is the most popular obama. in obama she is offering a character nd.erence for her husba an kemiyah seen firsthand that the president does not change to you are. it reveals who you are. barack knows the american dream because he has lived it. the [cheers and applause] he wants everyone in this country to have the same opportunity no matter who we are or where we are from or what we look like or who we love. >> she recalled their hard-up but happy early years. he has known hard times just like you. >> i can honestly say that when it comes to his character and his conviction and his heart, barack obama is still the same man i fell in love with all those years ago. for barack, success is not about how much money you make. it's about the difference you make in people's lives. [cheers and applause] >> the loved it and he was walking back at the white house with the couple's daughters. earli